Britney Spears Calls Upcoming Las Vegas Residency a “Massive Party”

Britney Spears is hitting the stage this fall in Las Vegas in an elaborate residency production, she tells Shape magazine.

"The [Vegas] performances won't be simple—they'll be a massive party from start to finish," Spears says in the May 20 issue. "And to pull this off, I have to be in top condition and running at full speed."